Final answer:
The book 'Because of Mr. Terupt' is not mentioned in the provided text excerpts, and therefore, Alexia's reaction to Jessica saying she could hang out with whoever she wanted is not described in these excerpts. An accurate response requires specific context from the book.
Step-by-step explanation:
In the book Because of Mr. Terupt, after Jessica told Alexia she could hang out with whoever she wanted, Alexia's response is not directly described in the question. However, exploring the characters' traits and relationships in the novel might suggest that Alexia's actions would reflect the development of her character over the course of the story, including her experiences with friendship and peer pressure. Without the specific context from the text, an accurate description of Alexia's reaction cannot be provided.